NEC Electra Elite 48/192 Features And Specifications Manual page 199

Issue 6
OPERATING
PROCEDURES
SERVICE CONDITIONS
C - 80
CTI is provided as follows:
The CTA-U Unit connects to the bottom of any DTP or DTU Multiline
Terminal except DTP-2DT-1(WH) TEL to provide an RS-232 interface
that connects to a PC running a TAPI compliant application.
A PCT(C)-U10 Unit or PCT(S)-U10 Unit is an interface board (installed
in an ISA slot of a PC) that connects to the ESI(8)-U10 ETU and may
also connect to a Multiline Terminal. The PC with this unit and TAPI
compliant application software becomes the CTI Terminal and handles
all Call Control functions.
The CTU(C)/(S)-U Unit connects to the bottom of any DTP or DTU
Multiline Terminal except DTP-2DT-1(WH) TEL to provide a USB
interface that connects to a PC running a TAPI-compliant application.
Data Assignment:
For more specific information, refer to the CTI product literature.
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Computer Telephony Integration (CTI)
Electra Elite